Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investment securities available-for-sale
Amortized Cost	$ 344,604	$ 307,764
Unrealized Gains	9,712	3,061
Unrealized Losses	(167)	(475)
Fair Value	354,149	310,350
U. S. Treasury and agencies
Investment securities available-for-sale
Amortized Cost	16,538	21,246
Unrealized Gains	93	9
Unrealized Losses	(4)	(15)
Fair Value	16,627	21,240
Obligations of state and political agencies
Investment securities available-for-sale
Amortized Cost	67,921	68,162
Unrealized Gains	1,212	647
Unrealized Losses	(27)	(161)
Fair Value	69,106	68,648
Mortgage backed securities - Residential Agency
Investment securities available-for-sale
Amortized Cost	221,844	180,411
Unrealized Gains	7,483	2,258
Unrealized Losses	(18)	(131)
Fair Value	229,309	182,538
Mortgage backed securities - Commercial
Investment securities available-for-sale
Amortized Cost	29,128	30,752
Unrealized Gains	899	101
Unrealized Losses	(117)	(168)
Fair Value	29,910	30,685
Asset backed securities
Investment securities available-for-sale
Amortized Cost	134	139
Unrealized Gains	7	5
Fair Value	141	144
Corporate bonds
Investment securities available-for-sale
Amortized Cost	9,039	7,054
Unrealized Gains	18	41
Unrealized Losses	(1)
Fair Value	$ 9,056	$ 7,095

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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